|
| Acc_victim |
car |
driver |
year |
| |
CEF234 |
Mike |
2000 |
| DFG456 |
Bill |
2000 |
| DFG456 |
Bill |
2001 |
| Acc_cause |
car |
driver |
year |
| |
ABC123 |
Mary |
2001 |
| DFG456 |
Bill |
2001 |
| CEF234 |
David |
2000 |
|
| The second second operand (relation Accident cause) is scanned.Its
next row is already included in the result and nothing
need to be done.
|
| RESULT |
car |
driver |
year |
| |
CEF234 |
Mike |
2000 |
| DFG456 |
Bill |
2000 |
| DFG456 |
Bill |
2001 |
| ABC123 |
Mary |
2001 |
|
|